(2S)-(2-hex-5-enyl)oxirane | 52485-73-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 环氧化物
• 英文名称: (2S)-(2-hex-5-enyl)oxirane
• 英文别名: (2S)-2-(5-hexenyl)oxirane；(2S)-1,2-epoxy-7-octene；(S)-1,2-epoxy-7-octene；Hex-5-enyl-oxirane；(2S)-2-hex-5-enyloxirane
• CAS: 52485-73-1
• 化学式: C₈H₁₄O
• 分子量: 126.199
• InChiKey: UKTHULMXFLCNAV-QMMMGPOBSA-N

物化性质

• 沸点：
  155.1±9.0 °C(Predicted)
• 密度：
  0.882±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  9
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  12.5
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  (2S)-(2-hex-5-enyl)oxirane 在 RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 正丁基锂 、 偶氮二甲酸二异丙酯 、 potassium carbonate 、 三苯基膦 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 甲苯 为溶剂， 反应 28.5h， 生成 (Z)-14-methoxy-3-[3-(triisopropylsilyl)-2-propynyl]-3,4,5,6,7,10-hexahydro-1H-2-benzoxacyclododecin-1-one
  参考文献：
  名称：

  从环氧氯丙烷合成水杨酰胺核心结构——为大环内酯收藏奠定基础

  摘要：

  从 (R)-表氯醇开始，两个连续的碳 - 碳键形成，一个与乙炔，另一个与氰化物，导致 3-羟基腈 20。该化合物通过衍生的 Evans aldol 反应进一步精制为烯醇 29醛 22 与戊烯酰恶唑烷酮 23 和羧基在羟醛反应后转化为甲基。烯醇29与苯甲酸5的Mitsunobu酯化产生具有两个双键和一个三键的酯30。在用 TIPS 基团保护末端三键后，闭环复分解反应以良好的产率进行。大环内酯 E-33 被转化为乙烯基碘 34 和含有水杨酰卤酰胺类似物 36 的吡啶。所述序列，表氯醇的双侧延伸似乎是生成仲醇的一般途径，仲醇可以进一步加工成功能化的大环内酯。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)

  DOI：

  10.1002/ejoc.200400705
• 作为产物：
  描述：

  1,7-辛二烯 在 氧气 、 nicotinamide adenine dinucleotide 、 异丙醇 、 腺嘌呤黄素 作用下， 以 aq. phosphate buffer 为溶剂， 反应 24.0h， 以2.7%的产率得到(2S)-(2-hex-5-enyl)oxirane
  参考文献：
  名称：

  利用来自红球菌属（Rhodococcus sp。）的苯乙烯单加氧酶的生物生产手性环氧烷烃。ST-10（RhSMO）

  摘要：

  AbstractWe describe the enantioselective epoxidation of straight‐chain aliphatic alkenes using a biocatalytic system containing styrene monooxygenase from Rhodococcus sp. ST‐10 and alcohol dehydrogenase from Leifsonia sp. S749. The biocatalyzed enantiomeric epoxidation of 1‐hexene to (S)‐1,2‐epoxyhexane (>44.6 mM) using 2‐propanol as the hydrogen donor was achieved under optimized conditions. The biocatalyst had broad substrate specificity for various aliphatic alkenes, including terminal, internal, unfunctionalized, and di‐ and tri‐substituted alkenes. Here, we demonstrate that this biocatalytic system is suitable for the efficient production of enantioenriched (S)‐epoxyalkanes.magnified image

  DOI：

  10.1002/adsc.201400383

文献信息

• Stereoselective Syntheses of Epothilones A and B via Nitrile Oxide Cycloadditions and Related Studies
  作者：Jeffrey W. Bode、Erick M. Carreira

  DOI：10.1021/jo015791h

  日期：2001.9.1

  epothilones A and B are described. The routes described make extensive study of nitrile oxide cycloadditions as surrogates for aldol addition reactions and have led to the realization of a highly convergent synthesis based on the Kanemasa hydroxyl-directed nitrile oxide cycloaddition. As well, our synthetic efforts have led to the development of new reaction methodologies and served as the proving ground for

  描述了方便和完全立体控制的埃坡霉素A和B的合成。所描述的路线对作为环醇醛加成反应的替代物的一氧化氮环加成物进行了广泛的研究，并导致基于Kanemasa羟基定向的一氧化氮环加成反应的高度收敛合成的实现。同样，我们的综合努力导致了新的反应方法的发展，并为几种不对称碳-碳键形成的现代方法提供了试验依据。
• Synthesis of the Salicylihalamide Core Structure from Epichlorohydrin- Laying the Foundation to Macrolactone Collections
  作者：Christian Herb、Frank Dettner、Martin E. Maier

  DOI：10.1002/ejoc.200400705

  日期：2005.2

  enynol 29 via an Evans aldol reaction of the derived aldehyde 22 with the pentenoyloxazolidinone 23 and conversion of the carboxyl to a methyl group after the aldol reaction. Mitsunobu esterification of the enynol 29 with the benzoic acid 5 gave rise to the ester 30 with two double bonds and one triple bond. After protection of the terminal triple bond with a TIPS group, the ring closing metathesis proceeded

  从 (R)-表氯醇开始，两个连续的碳 - 碳键形成，一个与乙炔，另一个与氰化物，导致 3-羟基腈 20。该化合物通过衍生的 Evans aldol 反应进一步精制为烯醇 29醛 22 与戊烯酰恶唑烷酮 23 和羧基在羟醛反应后转化为甲基。烯醇29与苯甲酸5的Mitsunobu酯化产生具有两个双键和一个三键的酯30。在用 TIPS 基团保护末端三键后，闭环复分解反应以良好的产率进行。大环内酯 E-33 被转化为乙烯基碘 34 和含有水杨酰卤酰胺类似物 36 的吡啶。所述序列，表氯醇的双侧延伸似乎是生成仲醇的一般途径，仲醇可以进一步加工成功能化的大环内酯。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
• Structure-Guided Regulation in the Enantioselectivity of an Epoxide Hydrolase to Produce Enantiomeric Monosubstituted Epoxides and Vicinal Diols via Kinetic Resolution
  作者：Die Hu、Bo-Chun Hu、Xiao-Dong Hou、Dong Zhang、Yu-Qing Lei、Yi-Jian Rao、Min-Chen Wu

  DOI：10.1021/acs.orglett.1c04348

  日期：2022.3.11

  Structure-guided microtuning of an Aspergillus usamii epoxide hydrolase was executed. One mutant, A214C/A250I, displayed a 12.6-fold enhanced enantiomeric ratio (E = 202) toward rac-styrene oxide, achieving its nearly perfect kinetic resolution at 0.8 M in pure water or 1.6 M in n-hexanol/water. Several other beneficial mutants also displayed significantly improved E values, offering promising biocatalysts

  对Aspergillus usamii环氧水解酶进行了结构引导的微调。一种突变体 A214C/A250I对消旋-氧化苯乙烯的对映体比 ( E = 202)提高了 12.6 倍，在纯水中 0.8 M 或正己醇/水中 1.6 M 时实现了近乎完美的动力学分辨率。其他一些有益的突变体也显示出显着提高的E值，为获得 19 种结构多样的手性单取代环氧化物（97.1 – ≥ 99% ee s）和邻二醇（56.2–98.0% ee p）提供了有希望的生物催化剂，并且产率很高。
• Single Enantiomer Epoxides by Bromomandelation of Prochiral Alkenes
  作者：Douglass F. Taber、Jiang-lin Liang

  DOI：10.1021/jo061818r

  日期：2007.1.1

  A combination of mandelic acid and N-bromosuccinimide efficiently converts prochiral alkenes into a readily separable 1:1 mixture of the bromomandelates. The diastereomerically pure bromomandelates are then converted into a variety of enantiomerically pure products. Terminal alkenes are converted into enantiomerically pure epoxides. Cyclohexene is converted into enantiomerically pure cis-2-azidocyclohexanol and cis-2-phenylthiocyclohexanol.
• “Cassette” In Situ Enzymatic Screening Identifies Complementary Chiral Scaffolds for Hydrolytic Kinetic Resolution Across a Range of Epoxides
  作者：Sangeeta Dey、Douglas R. Powell、Chunhua Hu、David B. Berkowitz

  DOI：10.1002/anie.200701280

  日期：2007.9.17

  ‘Cassette’-ISES (In Situ Enzymatic Screening) Identifies Complementary Chiral Scaffolds for Hydrolytic Kinetic Resolution Across a Range of Epoxides A new ‘Cassette’-In Situ Enzymatic Screen (ISES) for combinatorial catalysis is introduced. This allows the experimentalist to obtain an information-rich readout, in real time, providing an estimate of the sense and magnitude of enantioselectivity across more than one substrate. In its first iteration, the screen identified CoIII-salen catalysts with β-pinene- and α-naphthylalanine-derived chiral scaffolds with broad, yet complementary, substrate specificities.